Question detail
If a force of 10 N moves an object 5 m, how much work is done?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Work done and energy transfer
Question
- A. 50 J
- B. 15 J
- C. 5 J
- D. 10 J
Answer
50 J
Explanation
Work done is calculated using the formula W = F x s. Here, W = 10 N x 5 m = 50 J.
Common mistake
Confusing distance with displacement
Students often think the distance moved along the line of action of the force is the same as the straight‑line displacement between start and end points, even when the path is curved or the force changes direction.
Remind that the distance used in the work‑done equation is the total length travelled along the line of action of the force, not the vector displacement. If the force is applied along a curved path, add up the small straight‑line segments of that path to get the correct distance.
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